Do acetals and hemiacetals give positive 2,4 DNP test?
The reagent for the reaction is described as:
An aqueous solution of 2,4-dinitrophenyl hydrazine (DNP) is known as Brady's reagent
I recently learnt that acetal don't give positive tollens test whereas hemiacetals did. Following from the same conclusion I believe that since its an aqueous solution and seems alkaline aswell so according to me acetals should give negative 2,4 DNP Test whereas hemiacetals should give positive.
However I fail to find any literature on this, are my conclusions correct or are there any twists to it!?